Answer:
90 mph
Step-by-step explanation:
Average speed is given by
Average speed=(initial+final speed)/2
Given average speed of 60 mph then considering initial speed of 30 mph. Let x be the final speed hence
60=(30+x)/2
120=30+x
X=120-30=90 mph
Therefore, the return trip speed is 90 mph
If the width is 8ft and the length is twice the width then multiply 8 by 2 to find your length
Answer:
The number is 13.
Step-by-step explanation:
We are given the following in the question:
Let x be the variable, then according to the question
"The sum of eight and eleven times a number is 151"
We can write the equation:
Solving the equation, we can write:
Thus, the number is 13.
Answer:
ALEKS Corporation
Software company
Step-by-step explanation: